Who owns MAC prefix 002132?

002132 is registered to Masterclock, Inc. in the IEEE MA-L registry.

What devices use 002132?

Any network device with a MAC address starting 00:21:32 was manufactured by or for Masterclock, Inc..

MA-L · OUI prefix

Masterclock, Inc.

Any MAC address starting 00:21:32 is registered to Masterclock, Inc. in US.

OUI prefix	002132
Vendor	Masterclock, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:21:32:00:00:00

What this means

The IEEE assigned the MA-L block 002132 to Masterclock, Inc.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 00:21:32, it is Masterclock, Inc. hardware.

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